Explanation of the knee in the CR spectrum via interaction with massive neutrinos in the halo

Details Explanation of the knee in the CR spectrum via interaction with massive neutrinos in the halo Explanation of the knee in the CR spectrum via interaction with massive neutrinos in the halo

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc....5.1780d&link_type=abstract

Proceedings of the 27th International Cosmic Ray Conference. 07-15 August, 2001. Hamburg, Germany. Under the auspices of the Int

Physics

1

Scientific paper

Despite efforts by many researchers, the interpretation of the "knee" in the cosmic ray spectrum at E ≈ 1015.5 eV remains controversial. We propose that this feature in the cosmic ray spectrum may be due to the interaction of cosmic rays with massive neutrinos in the halo. The required cross section is assumed to be larger than that predicted by the Standard Model and due to a neutrino magnetic dipole moment. The position of the knee is determined by the neutrino mass. The values for the neutrino parameters obtained from the analysis of existing experimental data can be compatible with present bounds, making this an attractive explanation of the knee which can be confronted with future experiments.

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